So you’re on your way to Mars and forgot to pay a bill back on Earth. Before today, there would really be no way to do that, what with interplanetary currency still undefined. No problem. Now, on its 15th anniversary, PayPal announced the launch of PayPal Galactic and there is indeed a way to make universal space payments.

“Trips to Mars, the moon, even orbit will require we provide astronauts and astro-tourists with as many comforts from home as possible, including how to pay each other,” said astronaut/author Buzz Aldrin in an announcement made with PayPal President David Marcus reported by Laboratory Equipment.

PayPal Galactic addresses concerns of the SETI Institute and Space Tourism Society about how to prepare and support the future of space commerce. Working with PayPal, leaders in the space industry will address real life questions ranging from what currency will look like in a cash-free interplanetary society to the evolution of risk and fraud management.

“Whether it’s paying a bill, even helping a family member on Earth, we’ll need access to money. I think humans will reach Mars, and I would like to see it happen in my lifetime,” said Aldrin.Right now the need for PayPal Galactic exists, with astronauts manning the International Space Station year-round. “Within five to 10 years the earliest types of ‘space hotels’ and orbital and lunar commerce will be operational and in need of a payment system,” said John Spencer, founder and president of the Space Tourism Society.